Or you could write and ask the author, who is always willing to help (sorry, David!)...
On 16 Dec 2010, at 11:24, Ian Tickle wrote: >> I think this is how the Oxford CRYSTALS software ( >> http://www.xtl.ox.ac.uk/crystals.html ), which has been around for at >> least 30 years, deals with this issue, so I can't accept that it can't >> be made to work, even if I haven't got all the precise details >> straight of how it's done in practice. > > PS just to point out that CRYSTALS is now (since 2009) open source, so > anyone can download it and find out for themselves how it's done! > > Cheers > > -- Ian Harry -- Dr Harry Powell, MRC Laboratory of Molecular Biology, MRC Centre, Hills Road, Cambridge, CB2 0QH